- 01 7月, 2013 5 次提交
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由 Jonas Gorski 提交于
All BCM63XX SoCs starting with BCM6358 have a BMIPS4350 instead of a BMIPS3300, so select it unless support for any of the older SoCs is selected. All BMIPS4350 have only two CPUs, so select the appropriate default. Signed-off-by: NJonas Gorski <jogo@openwrt.org> Cc: linux-mips@linux-mips.org Cc: John Crispin <blogic@openwrt.org> Cc: Maxime Bizon <mbizon@freebox.fr> Cc: Florian Fainelli <florian@openwrt.org> Cc: Kevin Cernekee <cernekee@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/5355/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Kevin Cernekee 提交于
MIPS software IRQs 0 and 1 are used for interprocessor signaling (IPI) on BMIPS SMP. Make the board support code aware of them. Signed-off-by: NKevin Cernekee <cernekee@gmail.com> [jogo@openwrt.org: move sw irqs behind timer irq] Signed-off-by: NJonas Gorski <jogo@openwrt.org> Cc: linux-mips@linux-mips.org Cc: John Crispin <blogic@openwrt.org> Cc: Maxime Bizon <mbizon@freebox.fr> Cc: Florian Fainelli <florian@openwrt.org> Patchwork: https://patchwork.linux-mips.org/patch/5354/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Gregory Fong 提交于
For non-SMP, uses the new random canary value that is stored in the task struct whenever a new task is forked. Based on ARM version in df0698be and subject to the same limitations: the variable GCC expects, __stack_chk_guard, is global, so this will not work on SMP. Quoting Nicolas Pitre <nico@fluxnic.net>: "One way to overcome this GCC limitation would be to locate the __stack_chk_guard variable into a memory page of its own for each CPU, and then use TLB locking to have each CPU see its own page at the same virtual address for each of them." Signed-off-by: NGregory Fong <gregory.0xf0@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5488/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Gregory Fong 提交于
Implements basic stack protector support based on ARM version in c743f380 , with Kconfig option, constant canary value set at boot time, and script to check if compiler actually supports stack protector. Tested by creating a kernel module that writes past end of char[]. Signed-off-by: NGregory Fong <gregory.0xf0@gmail.com> Cc: linux-mips@linux-mips.org Cc: Filippo Arcidiacono <filippo.arcidiacono@st.com> Cc: Carmelo Amoroso <carmelo.amoroso@st.com> Patchwork: https://patchwork.linux-mips.org/patch/5448/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Markos Chandras 提交于
When building with -fstack-protector, gcc emits the __stack_chk_guard and __stack_chk_fail symbols to check for stack stability. These symbols are defined in vmlinux but the generated vmlinux.bin that is used to create the compressed vmlinuz image has no symbol table so the linker can't find these symbols during the final linking phase. As a result of which, we need either to redefine these symbols just for the compressed image or drop the -fstack-protector option when building the compressed image. This patch implements the latter of two options. Fixes the following linking problem: dbg.c:(.text+0x7c): undefined reference to `__stack_chk_guard' dbg.c:(.text+0x80): undefined reference to `__stack_chk_guard' dbg.c:(.text+0xd4): undefined reference to `__stack_chk_guard' dbg.c:(.text+0xec): undefined reference to `__stack_chk_fail' [ralf@linux-mips.org: I'm applying this before the patch that actually adds stack protector support for MIPS. This means, it will not be possible to trigger above error message with any commit from the tree but rather they are what one would hit without this commit.] Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Cc: Markos Chandras <markos.chandras@imgtec.com> Patchwork: https://patchwork.linux-mips.org/patch/5575/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 18 6月, 2013 4 次提交
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由 Grant Likely 提交于
The MIPS interrupt controllers are all registering their own irq_domains now. Drop the MIPS specific code because it is no longer needed. Signed-off-by: NGrant Likely <grant.likely@linaro.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/5458/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Joe Perches 提交于
This typedef is unnecessary and should just be removed. Signed-off-by: NJoe Perches <joe@perches.com> Cc: Jiri Kosina <trivial@kernel.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/5460/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Paul Bolle 提交于
The PMC MSP71XX gpio drivers were added in v2.6.28, see commit 9fa32c6b ("MIPS: PMC MSP71XX gpio drivers"). They are only built if CONFIG_HAVE_GPIO_LIB is set. But the Kconfig symbol HAVE_GPIO_LIB was already removed in v2.6.27, see commit 7444a72e ("gpiolib: allow user-selection"). So these drivers were never buildable. Perhaps no-one noticed because there are no in tree users of msp71xx_init_gpio() and msp71xx_init_gpio_extended(). Anyhow, these drivers can safely be removed. Signed-off-by: NPaul Bolle <pebolle@tiscali.nl> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/5345/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Paul Bolle 提交于
promcon.o is built if CONFIG_PROM_CONSOLE is set. But there's no Kconfig symbol PROM_CONSOLE, so promcon.c is unbuildable. Remove it. Signed-off-by: NPaul Bolle <pebolle@tiscali.nl> Acked-by: NMaciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/5344/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 13 6月, 2013 24 次提交
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由 Jayachandran C 提交于
The invalid value for scratch register is -1, so update the checks of the form (scratch_reg > 0) to be (scratch_reg >= 0). This will fix the case in Netlogic XLP where the scratch_reg can be 0. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5444/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
XLR/XLP COP0 scratch is register 22, sel 0-7. Add a function c0_kscratch() which returns the scratch register for the platform, and use the return value while generating TLB handlers. Setup kscratch_mask to 0xf for XLR/XLP since the config4 register does not exist. This allows the kernel to allocate scratch registers 0-3 if needed. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5445/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
Fix an issue in plat_irq_dispatch due to which it can call do_IRQ with a PIC irq that is not mapped. When a per-cpu interrupt and a PIC interrupt are both active, the check 'eirr & PERCPU_IRQ_MASK' will be true, but the interrupt in 'i' will be the number of the PIC interrupt. In this case, we will call do_IRQ on the PIC interrupt without mapping it with nlm_irq_to_xirq(). Fix this by using __ffs64 instead of __ilog2_u64 and using the interrupt number instead of mask to identify per-cpu interrupts. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5432/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
The XLPs in production do not need these workarounds. Remove the code and the associated ifdef. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5430/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
Fix a cache error found in stress test, caused by the prefetch instruction going beyond valid memory when acessing the last page of a region. Add the pref_backup logic similar to XLR in XLP too. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5431/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
Earlier we just waited for the first thread of the CPU to come online before proceeding to wake up others. Update it to wait for all the CPUs in the core. This will be useful when the boot-up is slow, like while debugging or when running in a simulator. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5429/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
This does not cause a problem yet, but we do not want to write 1 to reserved bits. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5424/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
Fix an issue in the reset code. Since this code is copied to the reset vector, using 'j' for looping is not correct. Use relative branch 'b'. Update the usage of 'j' in smpboot.S to be consistent although it is not a bug there. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5427/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
Move the nlm_cpu_ready[] array used by the cpu wakeup code to the boot area, along with rest of the boot parameter code. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5425/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
This moves the calculation and casting needed to access the CPU initialization data to a function nlm_get_boot_data() Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5426/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
The core initialization and reset vector setup needs to be done even when booting uniprocessor. Move this code from smp.c to setup.c Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5428/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
The reset and core initialization code should be available for uniprocessor as well. This changes is just to take out the code into a different file, without any change to the logic. The change for uniprocessor initialization code is in a later patch. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5423/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
Create new flle arch/mips/netlogic/xlp/dt.c and move the device tree related code there. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5422/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
Add SYS_SUPPORTS_ZBOOT and SYS_SUPPORTS_ZBOOT_UART16550 config options for XLR and XLP. Update boot/compressed/uart-16550.c to add UART port for XLR and XLP. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5417/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
Fix uart-16550.c for adding XLR/XLP support, changes are: * Make register read/write use volatile pointers * Support 32 bit IO read/write * Increase timeout in waiting for UART LSR Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5416/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
Add COP2 register state structure and functions for Netlogic XLP. The RX and TX buffers and status registers are to be saved. Since the registers are 64-bit, do the implementation in inline assembly which works on both 32-bit and 64-bit kernels. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Cc: ddaney.cavm@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/5413/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
Rename macro nlm_cop2_enable() to nlm_cop2_enable_irqsave() and the macro nlm_cop2_restore to nlm_cop2_disable_irqrestore(). The new names will reflect the functionality better, and will make nlm_cop2_restore() available to be used later in COP2 save/restore patch. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Cc: ddaney.cavm@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/5412/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
The sel argument os nlm_read_c2_status() was not used and the macro returned the sel 0 in all cases. Fix this by defining two macros: nlm_read_c2_status0() and nlm_read_c2_status1() to return the two status registers. Add functions to write to the status registers as well. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Cc: ddaney.cavm@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/5414/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
Kernel threads should be able to use COP2 if the platform needs it. Do not call die_if_kernel() for a coprocessor unusable exception if the exception due to COP2 usage. Instead, the default notifier for COP2 exceptions is updated to call die_if_kernel. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Cc: ddaney.cavm@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/5415/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
Move the common code for saving and restoring platform specific COP2 registers to switch_to(). This will make supporting new platforms (like Netlogic XLP) easier. The platform specific COP2 definitions are to be specified in asm/processor.h and in asm/cop2.h. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Cc: ddaney.cavm@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/5411/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ganesan Ramalingam 提交于
Add SWIOTLB config option and related files to Netlogic platform. Some XLP SoC components like the SD/MMC interface cannot do DMA beyond 32-bit physical address. The SD/MMC driver can use memory outside this range for IO, to support this we have to add bounce buffers implemented by SWIOTLB. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Cc: Ganesan Ramalingam <ganesanr@broadcom.com> Patchwork: https://patchwork.linux-mips.org/patch/5410/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jayachandran C 提交于
Provide a default implementation of phys_to_dma and dma_to_phys in mach-generic/dma_coherence.h. If CONFIG_NEED_SG_DMA_LENGTH is defined, the dma_length field in struct scatterlist is used. Set this up in mips_dma_map_sg so that the default mips DMA ops can be used when SWIOTLB is enabled. Signed-off-by: NJayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5409/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 11 6月, 2013 7 次提交
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由 Markos Chandras 提交于
CONFIG_FRAME_POINTER is not selectable for MIPS so this codepath was never executed. Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com> Acked-by: NSteven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5440/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
This enables support for CONFIG_NO_HZ_FULL. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
This will simplify further modifications. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Chen Gang 提交于
Ensure strings are always '\0' terminated. Or in the next pr_info() shit may hit the fan. Signed-off-by: NChen Gang <gang.chen@asianux.com> Acked-by: NJohn Crispin <blogic@openwrt.org> Cc: david.daney@cavium.com Cc: linux-mips@linux-mips.org Cc: Linux-Arch <linux-arch@vger.kernel.org> Cc: linux-kernel@vger.kernel.org <linux-kernel@vger.kernel.org> Patchwork: https://patchwork.linux-mips.org/patch/5331/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Chen Gang 提交于
'compatible' is used by strlen() in __of_device_is_compatible(). Ensure strings are always '\0' terminated. 'of_ids is not a structure in "include/uapi/*", so no need to initialize it completly; using strlcpy() instead of strncpy() will do. Signed-off-by: NChen Gang <gang.chen@asianux.com> Acked-by: NJohn Crispin <blogic@openwrt.org> Cc: juhosg@openwrt.org Cc: linux-mips@linux-mips.org Cc: Linux-Arch <linux-arch@vger.kernel.org> Patchwork: https://patchwork.linux-mips.org/patch/5330/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Chen Gang 提交于
'compatible' is used by strlen() in __of_device_is_compatible(). Ensure strings are always '\0' terminated. 'of_ids is not a structure in "include/uapi/*", so no need to initialize it completly; using strlcpy() instead of strncpy() will do. Signed-off-by: NChen Gang <gang.chen@asianux.com> Acked-by: NJohn Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Cc: Linux-Arch <linux-arch@vger.kernel.org> Patchwork: https://patchwork.linux-mips.org/patch/5329/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 David Daney 提交于
When you turn it off, the kernel is unusable, so get rid of the option and always allow unaligned access. The Octeon specific memcpy intentionally does unaligned accesses and it must not fault. Signed-off-by: NDavid Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5303/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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